“That no more qualifies you to be president than being a plumber,” Joe Biden said today, discussing Mitt Romney’s work at private-equity firm Bain Capital.

UPDATE: Samuel Wurzelbacher, the GOP congressional candidate in Ohio better known as “Joe the Plumber,” says that Biden’s comments show that he is promoting “class warfare.”

“The way I feel about it, quite frankly, is people in the blue collar world if anything have a better understanding of how to run things than what Vice President Biden gives us credit for,” he says. “We’re the guys who have to make the paychecks stretch, we’re the guys who have to makes sure that our employees are paid. … in truth, I think we have a better understanding of how this country works because we’re the ones that built it.”

Does he view Biden’s comment as offensive? “If I cared enough about him, I guess I would,” answers Wurzelbacher.